some charts and graphs (science)

Myself and my colleagues have been poring over some data we've collected, and I'd like to present it in visual form for your review and consideration.

First:

Observation: Clearly, people need to be having more sex to prevent fires.

Next we have:

Observation: Clear proof that our prison system is flooding and bloating like a tick.

Our third graph:

Observation: The Arab has replaced the Nazi. Only natural, I suppose.

Lastly:

Observation: They were called the "Roaring Twenties" because everyone was roaring in fear of Demons and aliens. Also, skeletons, through through sheer numbers, held more popularity than even the mightiest dragons.

I conclude this report by stating that these observations are baffling. It is truly a wondrous and strange world we live in.